Arsenal's Arsène Wenger has been banned for one match by Uefa over his comments about the referee Massimo Busacca, right. Photograph: Dave Thompson/PA

Arsène Wenger has received a one-match ban and been fined €10,000 (£8,680) by Uefa after being found guilty of improper conduct for calling the referee Massimo Busacca "embarrassing" after Arsenal's 3-1 defeat at Barcelona, which knocked them out of the Champions League last week.

Samir Nasri has been banned for one match for his own disparaging remarks regarding the Swiss official, and he and Wenger have three days to decide whether to appeal. Although what Nasri may decide is unclear, it is understood that given the relatively small fine and short length of the ban that Wenger may decide to accept the decision and move on.

Tottenham Hotspur's first-team coach, Joe Jordan, has also been handed a one-match suspension for incidents in the match at Milan. Jordan clashed with Gennaro Gattuso, who was given a four-match ban for head-butting him.

Wenger became annoyed at the Camp Nou after Busacca sent off Robin van Persie for taking a shot after the official had blown the whistle for offside. Wenger said then: "It's not a surprise the referee didn't book a single Barcelona player. I just spoke to Uefa people. They are shocked as well. He killed a promising, fantastic football match. What for?

"If it's a bad tackle it's a second bookable offence but the way he did it is embarrassing if you love the game. How can you kill a football game like that? It was a very promising game, very interesting, that's the regret. We lost against a very good Barcelona side, congratulations to them and good luck for the future, but we have many regrets because we didn't expect to lose the game like that."

Wenger twice approached Busacca after the final whistle to offer his point of view, which may have added to the case against him. The Frenchman received a one-game ban in 2007 for remarks he made to an official when Arsenal played Sevilla.

Before and during their clubs' next European match, Wenger and Jordan will not be allowed to go in the dressing room, the tunnel, the technical zone or on the pitch. They will also not be allowed to communicate with their teams.

A statement from Uefa said: "Arsène Wenger and Samir Nasri have both been suspended for one Uefa club competition match following charges of improper conduct. The Arsenal manager has also been fined €10,000. An appeal may be lodged against the ruling within three days of the dispatch of the reasoned decision."

Wenger also had bad news regarding injuries to Cesc Fábregas, Theo Walcott and Thomas Vermaelen. He said: "Cesc Fábregas is out for the game on Saturday [against West Bromwich Albion]. He should be back after the international break, maybe – he has a chance, but he is not available for the weekend. Walcott is not available for the weekend and he has no chance [for the international break] – he is not available for England.

"For Thomas Vermaelen the season is over. In fairness he has not played since September, I never expected him to be fit before the end of the season. He is not out on the field yet and it is impossible [for him to play] after six months without competition. I am confident he will have a full recovery but for this season we cannot rely on him."

Johan Djourou is also out for at least six weeks but Wenger confirmed that the goalkeeper Jens Lehmann had signed a month-by-month contract as cover after Wojciech Szczesny dislocated a finger.

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